Pertussis is a highly contagious, vaccine-preventable, respiratory illness caused by Bordella pertussis. In recent years, pertussis infections have reemerged worldwide.1 In resource-poor countries, pertussis-associated case fatality rate is 4% and highest in infancy.2 In 2015, the WHO reported 142,512 pertussis cases globally and 89,000 deaths.3 In the year 2017 in India, totally 23,779 cases were reported with 7 deaths.4
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Rocha G, Soares P, Soares H, Pissarra S, Guimarães H. Pertussis in the newborn: certainties and uncertainties in 2014. Paediatr Respir Rev 2015;16(2):112–118.
Libster R, Edwards KM. Re-emergence of pertussis: what are the solutions? Expert Rev Vaccines 2012;11(11):1331–1346. DOI: 10.1586/erv.12.118.
Cherry JD. Pertussis in young infants throughout the world. Clin Infect Dis 2016;63(Suppl 4):S119–S122. DOI: 10.1093/cid/ciw550.